2010 INFINITI QX56 Factory Service Manual

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Page 545 of 4210

INFINITI QX56 2010 Factory Service Manual C1130, C1131, C1132, C1133, C1136 ENGINE SIGNAL
BRC-53
< COMPONENT DIAGNOSIS > [VDC/TCS/ABS]
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C1130, C1131, C1132, C1133, C1136 ENGINE SIGNAL
DescriptionINFOID:0000000

C1130, C1131, C1132, C1133, C1136 ENGINE SIGNAL
BRC-53
< COMPONENT DIAGNOSIS > [VDC/TCS/ABS]
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C1130, C1131, C1132, C1133, C1136 ENGINE SIGNAL
DescriptionINFOID:0000000005148009
ABS actuator and electric unit (control unit) and ECM exchange the engine signal with CAN communication
line.
DTC LogicINFOID:0000000005148010
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES >> Proceed to diagnosis procedure. Refer to BRC-53, "Diagnosis Procedure".
NO >> Inspection End
Diagnosis ProcedureINFOID:0000000005148011
1.CHECK ENGINE SYSTEM
1. Perform ECM self-diagnosis. Repair or replace it ems indicated, then perform ECM self-diagnosis again.
Refer to EC-63, "
CONSULT-III Function (ENGINE)".
2. Perform ABS actuator and electric unit (control unit) self-diagnosis. Refer to BRC-23, "
CONSULT-III Func-
tion (ABS)".
Is any item indicated on the self-diagnosis display?
YES >> Repair or replace the affected part.
NO >> Inspection End
Special Repair RequirementINFOID:0000000005194916
1.ADJUSTMENT OF STEERING AN GLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the st eering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to BRC-8, "
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
POSITION : Description".
>> GO TO 2
2.CALIBRATION OF DECEL G SENSOR
DTC Display item Malfunction detected condition Possible cause
C1130 ENGINE SIGNAL 1
Based on the signal from ECM, ABS actuator and electric
unit (control unit) judges that engine fuel cut system is
malfunctioning. • Harness or connector
• ABS actuator and electric unit
(control unit)
•ECM
• CAN communication line
C1131 ENGINE SIGNAL 2
C1132 ENGINE SIGNAL 3
C1133 ENGINE SIGNAL 4
C1136 ENGINE SIGNAL 6
Self-diagnosis results
ENGINE SIGNAL 1
ENGINE SIGNAL 2
ENGINE SIGNAL 3
ENGINE SIGNAL 4
ENGINE SIGNAL 6
Revision: April 20092010 QX56

Page 546 of 4210

INFINITI QX56 2010 Factory Service Manual BRC-54
< COMPONENT DIAGNOSIS >[VDC/TCS/ABS]
C1130, C1131, C1132, C
1133, C1136 ENGINE SIGNAL
Always perform calibration of decel G sensor when replac ing the ABS actuator and electric unit (control un

Page 547 of 4210

INFINITI QX56 2010 Factory Service Manual C1140 ACTUATOR RLYBRC-55
< COMPONENT DIAGNOSIS > [VDC/TCS/ABS]
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C1140 ACTUATOR RLY
DescriptionINFOID:0000000005148013
Activates or deactivates each solenoid valve acco

Page 548 of 4210

INFINITI QX56 2010 Factory Service Manual BRC-56
< COMPONENT DIAGNOSIS >[VDC/TCS/ABS]
C1140 ACTUATOR RLY
NO >> Repair or replace malfunctioning components.
3.CHECK SOLENOID, VDC SWITCH-OVER VALV
E AND ACTUATOR RELAY GROUND CIRCUIT
Check conti

Page 549 of 4210

INFINITI QX56 2010 Factory Service Manual C1142 PRESS SENSORBRC-57
< COMPONENT DIAGNOSIS > [VDC/TCS/ABS]
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C1142 PRESS SENSOR
DescriptionINFOID:0000000005148018
The front and rear pressure sensors c onvert the

Page 550 of 4210

INFINITI QX56 2010 Factory Service Manual BRC-58
< COMPONENT DIAGNOSIS >[VDC/TCS/ABS]
C1142 PRESS SENSOR
2. Measure the continuity between the ABS actuator and electric unit (control unit) connector E125 (A) and
body ground.
Is the inspection

Page 551 of 4210

INFINITI QX56 2010 Factory Service Manual C1142 PRESS SENSORBRC-59
< COMPONENT DIAGNOSIS > [VDC/TCS/ABS]
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3.REAR PRESSURE SENSOR INSPECTION
1. Connect the rear pressure sens or and ABS actuator and electric un

Page 552 of 4210

INFINITI QX56 2010 Factory Service Manual BRC-60
< COMPONENT DIAGNOSIS >[VDC/TCS/ABS]
C1143, C1144 STEERING ANGLE SENSOR
C1143, C1144 STEERING ANGLE SENSOR
DescriptionINFOID:0000000005148023
The steering angle sensor detects the rotation amou

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